LD11/21 Series Current Mode Differential Pyroelectric Detectors Description Our LD11/21 series of pyroelectric detectors are a collection of single channel LiTaO3 devices operating in current mode with an integrated Op-Amp and two outputs. Revolutionary differential amplification scheme Charge Harvesting from top and bottom of chip 44% improvement in SNR over non-differential version Thermal based detector, any radiation absorbed produces a signal Integrated Op-Amp, single supply Wide spectral coverage from the UV to THz Modular design principle Assembled in an ISO:9001 certified facility Microphonics reduction as standard True differential with differential output for full flexibility in reduction of EMI or common mode rejection and ground noise Pyroelectric Crystal Non-dispersive infrared gas analysis Flame and fire detection Non-contact temperature measurement Flame control Moisture monitoring Spectroscopy Demonstration of the effect on signal when both outputs are subtracted. 3.5 3.0 Signal 1 Signal 2 Math Versions ▪ Wide range of window and filter options (including small and large aperture) ▪ LWIR through THz options available Common mode noise eliminated via. differential detector Germany and Other Countries Laser Components Germany GmbH Tel: +49 8142 2864 – 0 Fax: +49 8142 2864 – 11 [email protected] www.lasercomponents.com United Kingdom Laser Components (UK) Ltd. Tel: +44 1245 491 499 Fax: +44 1245 491 801 [email protected] www.lasercomponents.co.uk Nordic Countries Laser Components Nordic AB Tel: +46 31 703 71 73 Fax: +46 31 703 71 01 [email protected] www.lasercomponents.se USA Laser Components USA, Inc. Tel: +1 603 821 – 7040 Fax: +1 603 821 – 7041 info

LD11/21 Series Single Channel Current Mode Differential Pyroelectric Detectors LD2100X2020 Isometric Drawing (with cutaway) Circuit Diagram ▪ Single channel LTO Pyroelectric detector ▪ True differential output ▪ Current mode ▪ Single supply ▪ TFC Technical Drawing SCALE: 10:1 12.00±0.50 0.472±0.020 PIN 1: V+ PIN 2: OUTPUT 1 PIN 3: GROUND PIN 4: OUTPUT 2 PIN 5: CASE SIDE VIEW BOTTOM VIEW TOP VIEW Aperture Size* Element Size Organic Black Feedback Resistor Noise Density [µV/sqrt(Hz)] * Please refer “Filters and Windows” datasheet for all available options (aperture size depends on filter/window...

LD11/21 Series Single Channel Current Mode Differential Pyroelectric Detectors Absolute Maximum Ratings Min Soldering temperature, 5 sec [°C] ESD damage threshold, Human Body Model Class ...* [V] * ANSI/ESD STN5. 1-2007 ** Limited by packing materials. Handling ESD sensitive device. High electrostatic discharge can damage or degrade the device. Use proper ESD handling precautions. Part Number Designation X chip only current mode voltage mode Element Size Filter Code see "Filters + Windows" datasheet Product Changes LASER COMPONENTS reserves the right to make changes to the product(s) or information...